“…Of the studies, 37 used validated self-report measures of PA or related constructs, including the International Physical Activity Questionnaire (IPAQ), 78 , 79 , 80 , 81 , 82 , 83 , 84 , 85 PAQ-Adolescents, 67 , 68 , 74 , 75 Global-PAQ, 69 Godin Leisure Time Exercise questionnaire, 86 , 87 24-h PA recall, 88 , 89 Pediatric Functional Activity Brief Scale, 90 , 91 Youth Activity Profile Questionnaire, 70 ecological momentary assessments, 66 MoMo PA Questionnaire, 65 or other validated questionnaires. 73 , 92 Two studies designed and validated new questionnaires for children in lockdown, 93 , 94 and 3 studies used device-based measures of PA, including accelerometry 73 and pedometry. 95 , 96 Four studies used qualitative approaches, including interviews, 97 parent-to-child interviews, 98 open-ended questions, 92 and a case study.…”